/*
 * Copyright [2020-2030] [https://www.stylefeng.cn]
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Guns采用APACHE LICENSE 2.0开源协议，您在使用过程中，需要注意以下几点：
 *
 * 1.请不要删除和修改根目录下的LICENSE文件。
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 */
package cn.stylefeng.roses.kernel.sms.aliyun.msign.impl;

import cn.hutool.log.Log;
import cn.stylefeng.roses.kernel.sms.aliyun.msign.MultiSignManager;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

/**
 * 获取缓存的map中的签名
 *
 * @author fengshuonan
 * @date 2018-09-21-上午10:49
 */
public class MapBasedMultiSignManager implements MultiSignManager {

    private static final Log log = Log.get();

    private static final int CLEAR_COUNT = 1000;

    private final Map<String, String> cacheMap = new ConcurrentHashMap<>();

    @Override
    public String getSign(String phone, String signName) {

        //先清除map
        clearMap();

        //分割签名数组
        String[] signNames = signName.split(",");

        //获取上次发送的时候用的哪个签名，这次换一个
        Object lastSignName = cacheMap.get(phone);
        if (lastSignName == null) {
            cacheMap.put(phone, signNames[0]);
            log.info("发送短信，签名为：" + signNames[0] + ",电话为：" + phone);
            return signNames[0];
        } else {
            for (String name : signNames) {
                if (!name.equals(lastSignName)) {
                    cacheMap.put(phone, name);
                    log.info("发送短信，签名为：" + name + ",电话为：" + phone);
                    return name;
                }
            }
            cacheMap.put(phone, signNames[0]);
            log.info("发送短信，签名为：" + signNames[0] + ",电话为：" + phone);
            return signNames[0];
        }
    }

    /**
     * 每隔一段时间清除下map
     *
     * @author fengshuonan
     * @date 2018/9/21 上午10:57
     */
    private void clearMap() {
        if (cacheMap.size() >= CLEAR_COUNT) {
            cacheMap.clear();
        }
    }

}
